“I'm proud to be an American and believe in disseminating the truth. And that is why after this news cast I'm resigning”.

Wahl added that while the Kremlin’s control is not obvious, in order to succeed there reporters must not question their editorial stance.

She said later in an interview with the Daily Beast: “It actually makes me feel sick that I worked there. It’s not a sound news organisation, not when your agenda is making America look bad.”

RT have responded on their website: “When a journalist disagrees with the editorial position of his or her organisation, the usual course of action is to address those grievances with the editor, and, if they cannot be resolved, to quit like a professional.

"But when someone makes a big public show of a personal decision, it is nothing more than a self-promotional stunt. We wish Liz the best of luck on her chosen path.”

Liz’s colleague Abby Martin made headlines earlier this week when she said Russia invading the Crimea was wrong.

She said: “I can't say enough how strongly I am against any state intervention in a sovereign nation's affairs. What Russia did is wrong,”